Hose coupling



Oct. 11, 1938. R g, LL N 2,132,506

HOSE COUPLING Filed Feb. 3, 1937 2 Sheets-Sheet l HIS ATTORNEY.

Oct. 11, 1938. R. o. ALL EN 2,132,505

' HOSE COUPLING Filed Feb. 3, 1937 I 2 Sheet-Sheet 2 INVENTOR H 55 ATTORNEY.

Patented Oct. 11, 1938 UNITED STATES nose COUPLING Roy 0. Allen, Athens, Pa., assignor to Ingersoll- Rand Company, Jersey City, N. J a corporation of New Jersey Application February 3, 1937, Serial No. 123,801

1 Claim.

This invention relatesto couplings, and more particularly to a hose coupling adapted to connect hose or conduit sections together in sealing I relationship.

One object of the invention is to enable the .hose sections to be quickly connected together and detached from each other.

Another object is to prevent accidental disconnection of the members comprising the hose connection. I

Other objects will be in part obvious and in part pointed out hereinafter.

In the drawings accompanying this specification and in which similar reference numerals refer to similar parts,

Figure 1 is a longitudinal side View of a hose coupling constructed in accordance with the practice of the invention,

Figure 2 is a longitudinal view, in section, of the hose coupling,

Figure 3 is a transverse view taken through Figure l on the line 3-3,

Figure 4 is a view similar to Figure 1 showing a furthermodiflcation of the invention, and

Figure 5 is a longitudinal side'view of the coupling illustrated in Figure 4 and showing the parts in position to be connected together.

Referring more particularly to the drawings and at first to the form of the invention illus- 30 trated in Figures 1 to-3 inclusive, designates,

in general, a hose coupling comprising a'pair of beyond the ends of the sleeves and are pressed firmly into sealing relationship with each other when the sleeves 2| are connected together.

On the peripheries of the sleeves are lugs 23 40 which are equally spaced with respect to each otherand extend beyond the ends of the sleeves to overlap a portion of the adjacent sleeve. the inner surface of the lugs 23 and preferably immediately adjacent the ends of the sleeves are arcuate grooves 24 of which the sides remote from. the end of the sleeve constitute cam surfaces 25. I

The grooves 24 are intended to accommodate arcuate ribs 26 of the adjacent sleeve and preferably arranged at right angles to the lugs. The ribs 26 are provided on their rear surfaces with cam surfaces 21 for cooperation with the cam surfaces to press the packing members firmly together upon the impartation of rotary move ment to the sleeves 2|.

To the end that the sleeves 2| may be effectively restrained against unauthorized rotary movement with respect to each other each sleeve is provided with a locking member 28 in the form of cylindrical casings encircling and slidable on the sleeves 2|. The external surfaces of the casings 28 are roughened, as by knurling, to provide gripping surfaces for actuating the casings. On the contiguous ends of the casings 28 are fingers 29 and 30 of which the latter are of somewhat greater length than, the fingers 29. The fingers are of slightly less width than the spaces between the lugs 23 when the sleeves are connected together.

In order to assure the retention of the locking members in the locking position at. all times the sleeves 2| are provided with peripheral grooves 3| to accommodate springs 32 which act with one end against the end surface 33 of the groove 3| and with their other ends against a projection, or projections, 34 carried by the sleeves and extending into the grooves 3|.

In assembling the device the sleeves are so positioned with respect to each other that the lugs 23 of one sleeve lie in the longitudinal planes of the fingers 29 and 3B of the locking member on the other sleeve. The sleeves are then pressed together and the locking members are thereby" retracted against the force of the springs 32. When the sleeves are pressed to a position in which the grooves 24 and the ribs 26 he in the same transverse plane relative rotary movement is imparted to the sleeves, and during this movement the cam surfaces 25 and. 21 will cause the sleeves to be drawn together and the packing members 22 to be pressed into effective sealing engagement with each other.

By rotating the sleeves into interlocking engagement with each other the lugs 23 will be moved out of the planes of the fingers 29 and 30 and the springs 32 will then actuate the locking members to their locking positions in which the fingers lie between the lugs 23.

Whenever it is intended to disconnect the sleeves from each other the locking members 28 are moved outwardly so that the short fingers 29 will lie outside of the transverse planes of the free ends of the lugs 23. The sleeves may then be rotated by means of the locking members until the ribs 26 are out of engagement with the grooves 24' after which the sleeves may be conveniently separated.

The modified form of the invention illustrated in Figures 4 and 5 differs only from that first described with respect to the locking. means for holding the sleeves against rotary movement with respect to .each other. In the present instance, a compression spring 38 is disposed about each sleeve and the outer ends of the spring is seated against a shoulder 39 which may be an integral portion of the sleeve. The opposite end of the spring 38 is in the form of a straight pin or plunger 40 which extends longitudinally of the coupling.

The pin 40 extends through an aperture H in a guide member 42 carried by the sleeve supporting the spring. The plunger 40 is of suflicient length to partly overlap the adjacent sleeve and, in the assembled positions of the sleeves, hes in a groove-orspace 43 defined by the adjacent ends of the arcuate ribs 26 and the guide member 42.

In assembling the coupling constructed in accordance with this form of the invention the sleeves are brought together-in face to face relationship in such manner that the ends of the 'plungers 40 abut the rib 26 on the adjacent sleeve. The sleeves may then be pressed together to bring the ribs 26 into registry with the grooves 24. Such movement will press the plungers 40 outwardly and thereby place the springs 88 under compression. Ii then .the sleeves are rotated relatively to each other to move the ribs 28 into the grooves 24 the said ribs will pass over the ends of the plungers ll and when the ends of the ribs move out oi the planes oi the plungers the spring portion 38 will actuate the plungers ll into the spaces 43 to hold the sleeve securely against unauthorized rotary movement.

I claim:

A hose coupling comprising a pair of sleeves arranged end to end, interlocking portions on the sleeves to prevent relative endwise movement of the sleeves, guide members on the sleeves having apertures therein, there being recesses in the peripheries oi the sleeves to register with the apertures in the adjacent sleeve,-plungers in the apertures to extend into the recesses for locking the sleeves against rotary movement with respect to each other, and springs integral with the plungers encircling the sleeves to maintain the plungers in the recesses.

ROY 0. Am. 

